The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2020
Filed:
Nov. 02, 2018
Gonzalo R. Arce, Newark, DE (US);
Gonzalo Garateguy, Framingham, MA (US);
Sean Xiaolu Wang, Wilmington, DE (US);
Daniel L. Lau, Lexington, KY (US);
Gonzalo R. Arce, Newark, DE (US);
Gonzalo Garateguy, Framingham, MA (US);
Sean Xiaolu Wang, Wilmington, DE (US);
Daniel L. Lau, Lexington, KY (US);
Graphiclead LLC, Newark, unknown;
Abstract
The present invention embodies a technique, referred to as Secure QR Codes, which not only provides aesthetically enhanced QR codes but also allows for security. It can embed a standard black and white QR code, referred to as a public QR code, and a secret QR code, both into a secure QR code. The secure QR code produced is composed of colored cells. The public black and white QR code must first be, either aesthetically enhanced into an enhanced colored QR code, or transformed into a colored QR code with cells of uniform color obtained by transforming each of the black and white cells of the public QR code into cells that takes a color from a subset of possible colors, such that the luminance of each colored cell approximates accurately the black or white luminance values of the public QR code.